Functions – Defining
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. What does def do?
2. How do you call a function named greet?
3. def say_hi():\n print('Hi')\nDoes this print anything?
4. What goes at the end of a def line?
5. Why use functions?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1def greet() print('Hi') | AValid: Function defined | |
| 2Def say_hi(): print('Hi') | BOk: Define then call | |
| 3def greet(): print('Hello') | CError: Missing colon after def | |
| 4def greet(): print('Hi') greet() | DOutput: (nothing) | |
| 5def say_hi(): print('Hi!') say_hi() | EOutput: Hi! | |
| 6def say_hi(): print('Hi!') | FError: 'def' is lowercase |
C
Definitions
def
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
___ greet():
print('Hello!')
2.
def greet()_
print('Hello!')
3.
def greet():
print('Hello!')
_____()
4.
def say_hi():
print('Hi!')
______()
5.
def welcome():
print('Welcome!')
_______()
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
def greet()
B
name = 'World'
C
print('Hello, ' + name)
D
print('Goodbye!')
E
greet()
Question 2
A
def greet():
B
name = 'World'
C
print('Hello, ' + name)
D
print('Goodbye!')
E
greet()
Question 3
A
Def greet():
B
name = 'World'
C
print('Hello, ' + name)
D
print('Goodbye!')
E
greet()
Question 4
A
def greet:
B
name = 'World'
C
print('Hello, ' + name)
D
print('Goodbye!')
E
greet()
Question 5
A
def greet():
B
print('Hello!')
C
D
def greet()
Answer Key
Functions – Defining
Section A: Quick Questions
Q1
A — Defines a new function
Q2
A — greet()
Q3
B — No defining doesn't run it
Q4
B — A colon :
Q5
A — To reuse code without rewriting it
Section B: Match the Pairs
Q1
def greet()
print('Hi') → Error: Missing colon after def
Q2
Def say_hi():
print('Hi') → Error: 'def' is lowercase
Q3
def greet():
print('Hello') → Valid: Function defined
Q4
def greet():
print('Hi')
greet() → Ok: Define then call
Q5
def say_hi():
print('Hi!')
say_hi() → Output: Hi!
Q6
def say_hi():
print('Hi!') → Output: (nothing)
Section C: Definitions
Q1
def — Keyword that creates (defines) a new function.~~FunctionSection D: Fill in the Blanks
Q1
def greet():
print('Hello!')Q2
def greet():
print('Hello!')Q3
def greet():
print('Hello!')
greet()Q4
def say_hi():
print('Hi!')
say_hi()Q5
def welcome():
print('Welcome!')
welcome()Section E: Spot the Error
Q1
A — Missing colon after the function definition
Q2
C — Code inside the function must be indented
Q3
A — def must be lowercase
Q4
A — Missing parentheses: even with no parameters, use def greet():
Q5
D — To call a function, just use greet(): don't put def before it